Jeweler&#39;s polishing-brush.



W. DIXON.

JEWBLERS POLBHING BRUSH.

APPLIOATION FILED JUNE 19, 1909.

60,21 60 Patented May 31,1910.

"III llll,"

. lowing is a specification.

a ra s ABLE a WILLIAM DIXON, OF NEVARK,.NEW JERSEY JEWELERS POLISHING-BRUSH.

Specification of Letters Patent. P te ted May 31, that}.

Application filed June '19, 1909. Serial No. 503,071.

To all whom it may concern:

Be it known that 1, WILLIAM DIXON, a citizen of the United States of America, residing in Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Jewelers Polishing-Brushes, of which the fol This invention relates to an improved brush for polishing jewelry, and more .especially the inside and outside iof watchcases In the accompanying drawings, Figure 1 represent-s a side-elevation of my nnproved brush, Fig. 2. is a verticalcentral section of the same an line 2, 2, Fig. 1, Fig. 8 is a vertical transverse section on line 3, 3, Fig.

2, and Fig. 4 shows the stitching together of the bristles before insertion into the socket of. the brush.

' Similar letters of reference indica e corresponding parts throughout the views.

' Referring to the' drawings, 0, represents a tubular socketwhich is'beveld 'at its inner forward end and provided. with a cylindrical recess a adjacent to the beveled portion (4 A core 5 is inserted into the central opening of the socket, said core being provided with a longitudinal bore 5 which diminishes in diametertoward the bristl holdingend for. being placed on the shaft.

or mandrel of the polisl'iing machine. The core b is provided at its end, adjacent to the beveled portion of the socket, with an out wardly-fiaring conical enlargement b Into the socket is inserted a ring 65 of bristles, which arranged in equal thickness throughout. The ring (5 is preferably formed of a layer of bristles, which are stitched together at one end on a longitudh:

nal strip of gauze by wire or othcr stitches. A bristle-strip of the required length is then cut oil and placed into the recess of the socket; the inner ends of the bristles d being first dipped into cement. 'lhe-core isth'en inserted into the ring of bristles and forced home into the socket until the n1iddle,por-

tion of the bristles are firmly held between the beveled inner edge of the socket and the flaring end of the core and the outer portionof the bristle-ring bent into the form shown in Fig. 2. After the setting of the cement. the ring of bristles is firmly hold in position, the inner portion being of cylindrical shape, the outer portion of conical shape. The ring of bristles may be made of varying thickness according to the size and work to be done by the polishing brush.

The improved brush is used in the same manner as the brushes heretofore-in use for polishing the inside or outside of watch cases and other articles of jewelry by placingthe longitudinal perforated core on the mandrel of a polishing machine in the usual manner.

The construction described may also be used for bailing brushes in which in place of the bristles cotton-strands are used.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent: y

1. A polishing brush consisting of a cylindrical socket havin a cylindrical. bore havm at its inner en a small reduced portion forming a shoulder and, at its outer end, a

[beveled portion, a ring of bristles in said socket resting againstsaid shoulder and having their inner ends secured together with a wire'fabrio stitched thereto, and a core having an outwardly flaring portion at its outer end and secured at its inner end in said reduced portion of the socket and tightly clamping said bristles in said cylindrical socket; between said timing andbev eled portions.

2. A polishng brush consisting of a cylindrica socket having an axial bore enlarged at the outer end to form a c lindrical recess having an annular shoulder at its inner end and having a beveled portion at its outer end, a ring of bristles inserted in said cylindrical recess against said shoulder, and a core provided at its outer end with an outwardly flaring shoulder opposed to said beveled portion, said core being. tightly secured at its inner end and its smaller end tc-the bore of said socket whereby said bristies are firmly secured to said cylindrical recess and between said fiaring shoulder and 

